Abstract
We propose that all direct leptons not due to vector meson decay can be attributed to the decay of virtual photons. At GeV/c, we expect , the ratio of direct photons to pions, to be about 10 to 20% for GeV.
- Received 10 November 1975
DOI:https://doi.org/10.1103/PhysRevLett.36.1017
©1976 American Physical Society